# CalBMIV1.py
height, weight = eval(input('请输入身高（米）和体重（公斤）[用逗号加空格隔开]：'))
bmi = weight / pow(height, 2)
print('BMI 数值为：{:.2f}'.format(bmi))
who = ''
if bmi < 18.5:
    who = '偏瘦'
elif 18.5 <= bmi < 25:
    who = '正常'
elif 25 <= bmi < 30:
    who = '偏胖'
else:
    who = '肥胖'
print("BMI指标为：国际'{0}'".format(who))
